We had our first earthquake over here recently. That was a bizarre feeling. I just became disoriented and I remember my dad freaking out. Nothing broke or anything.
"Ahu" are stone platforms on which many moai sit. There are 313 known ahu and 125 of these carry moai. The biggest, Ahu Tongariki is 220 m (720 ft), and had the most (15) and tallest moai.